[ncl-talk] Multiple Issues

[Jinwoong Yoo]

Dear Dave,


Inspired by your comment, "Perhaps an issue with a missing value not being recognized properly?", I cleared missing values in the input data (which was marked as "-nan").

Then, I was able to remove the lines (see attached image).

However, I am getting the warning messages still.


(0) gsn_add_cyclic: Warning: The range of your longitude data is not 360.
(0) You may want to set the gsnAddCyclic resource to False to avoid a
(0) warning message from the spline function.
warning:_NhlCreateSplineCoordApprox: Attempt to create spline approximation for X axis failed: consider adjusting trXTensionF value
warning:IrTransInitialize: error creating spline approximation for trXCoordPoints; defaulting to linear



Thank you very much.


Regards,


Jinwoong


________________________________
From: David Brown <dbrown at ucar.edu>
Sent: Thursday, November 19, 2015 3:13 PM
To: Jinwoong Yoo
Cc: Alan Brammer; ncl-talk at ucar.edu
Subject: Re: [ncl-talk] Multiple Issues

The unwanted lines in your plot all seem to be pointing towards a single point. Perhaps an issue with a missing value not being recognized properly?
It might help us diagnose the problem if you printed out summaries of the lat, lon, and data variables.
 -dave


On Thu, Nov 19, 2015 at 1:35 PM, Jinwoong Yoo <jinwoongyoo at unm.edu<mailto:jinwoongyoo at unm.edu>> wrote:

Thank you, Alan, for your comment.


Regards,


Jinwoong


________________________________
From: Alan Brammer <abrammer at albany.edu<mailto:abrammer at albany.edu>>
Sent: Thursday, November 19, 2015 1:29 PM
To: Jinwoong Yoo
Cc: ncl-talk at ucar.edu<mailto:ncl-talk at ucar.edu>
Subject: Re: [ncl-talk] Multiple Issues

Have you tried doing what the error suggests?

(0) You may want to set the gsnAddCyclic resource to False to avoid a
(0) warning message from the spline function.

if your plotting resources are in a variable name res

res at gsnAddCyclic  = False


Alan.




On 19 Nov 2015, at 15:15, Jinwoong Yoo <jinwoongyoo at unm.edu<mailto:jinwoongyoo at unm.edu>> wrote:

Dear NCL users,

I am trying to plot an image following an example at https://www.ncl.ucar.edu/Applications/Images/climo_1_lg.png.<https://www.ncl.ucar.edu/Applications/Images/climo_1_lg.png>
[https://www.ncl.ucar.edu/Applications/Images/climo_1_lg.png]

but I'm getting a few warnings and my result plot is not pretty enough (attached).

Warning messages are as below:

(0) gsn_add_cyclic: Warning: The range of your longitude data is not 360.
(0) You may want to set the gsnAddCyclic resource to False to avoid a
(0) warning message from the spline function.
warning:_NhlCreateSplineCoordApprox: Attempt to create spline approximation for X axis failed: consider adjusting trXTensionF value
warning:IrTransInitialize: error creating spline approximation for trXCoordPoints; defaulting to linear



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